Gordon memorial lecture: People, poultry and pathogenic mycoplasmas

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Abstract
1. Man in managing poultry for human benefit has found that his methods may precipitate or exacerbate certain diseases: among which are the mycoplasmoses of fowls and turkeys. 2. Control measures for these conditions have therefore been sought and to make them effective it has been necessary to study the epidemiology, diagnosis and pathogenesis of these conditions. Much is now known about their epidemiology although certain aspects still require investigation. 3. More sensitive and specific methods of diagnosis are also required and although it is possible to control these conditions by eradication the mycoplasmoses are still an economic problem. Under existing management systems, therefore, development and use of effective vaccines and additional drugs are essential. 4. It is noteworthy that the pathogenesis of at least one of the avian mycoplasmoses is similar to human immune‐complex disease. In further elucidation of this complex the fowl may be a useful experimental animal. 5. Thus the association of people, poultry and pathogenic mycoplasmas not only involves attempts to control the pathogens in order to attain maximum production by poultry but also could include the utilisation of poultry and the pathogen in an attempt to elucidate some of the diseases of people.